Which testing location is allowed for certifying a gross polluter vehicle after a failure?

• A. STAR station
• B. Any certified test station
• C. Mobile test unit
• D. Out-of-state facility

Answer: (A)

When a vehicle is identified as a gross polluter, it triggers a stricter re-testing process to verify that repairs actually brought it into compliance. The only testing location qualified to certify that a vehicle is no longer a gross polluter after a failure is a STAR-certified station. STAR stations have higher testing standards, calibrated equipment, and trained inspectors to ensure the problem was truly resolved before issuing a passing certification. Other options, like a general certified test station, mobile test units, or out-of-state facilities, do not have the authority or the required setup to officially certify a vehicle as no longer a gross polluter.